The Edenville and Sanford dams once blocked invasive lampreys from entering upstream rivers. But the 2020 dam failures provided an opening, and lamprey now threaten native fish. Regulators say they have a plan.
Great Lakes News Collaborative

Bridge Michigan, Circle of Blue, Great Lakes Now at Detroit Public Television, The Narwhal and Michigan Public work together to report on the most pressing threats to the Great Lakes region’s water. This independent journalism is supported by the Charles Stewart Mott Foundation.
Water’s True Cost
As the nation prepares to pour hundreds of billions of federal dollars into rescuing water systems, the Great Lakes News Collaborative investigates the true cost of water in Michigan. Read the series.
Ready or Not
The Great Lakes region is frequently touted as one of the most climate-resilient places in the U.S., in part because of its enviable water resources. But climate change also threatens our water. The Great Lakes News Collaborative explores what it will take to prepare. Read the series.
Anishinaabe tribes work to save Michigan whitefish
Great Lakes whitefish are in decline, in part because dams block their passage to rivers where they once spawned. Tribal scientists are looking to save a fish of economic and cultural importance.
Once beset by industrial pollution, Rouge River on a slow path to recovery
Thanks to the Clean Water Act, the Rouge is no longer a dumping ground for industrial waste. But its gains are fragile and incomplete, with contaminants still soiling the river bottom and the fish that returned to its waters.
Frogs, salamanders, fairy shrimp usher in spring at Michigan vernal pools
Some call it prom night for amphibians: When warm rain falls in early spring, Michigan’s normally-elusive salamanders and other species gather at ephemeral wetlands to dance in the dark, looking for a mate.
Multi-million dollar restoration projects proposed for the Saginaw Bay watershed; paid with settlement money from corporate polluters
A new phase of restoration along polluted areas stretching from Midland to Saginaw to Bay City and beyond is up for public scrutiny.
Report: MI and OH must spend hundreds of millions more annually to curb toxic blooms in Lake Erie
A new report suggests Michigan and Ohio will fail to reduce nutrient runoff by 40 percent as agreed upon.
For Ann Arbor water managers, ongoing battle to keep toxic chemicals at bay
Outdated federal water laws and chemicals that were approved for industry without assessing for risk leave Ann Arbor and other communities struggling to ward off water contaminants before they foul drinking supplies.
Right to water: Could 2023 be the year Michigan ends shutoffs?
Some Democratic lawmakers see a bill to declare a human right to water as a first step toward broader efforts to end the water shutoffs that plague low-income Michiganders.
Road salt, a stealthy pollutant, is damaging Michigan waters
Rivers and lakes are becoming saltier while law and practice limit effective responses.
Report aims to prepare Great Lakes states for effects of climate change
Climate change is already affecting the Great Lakes. One group is urging Michigan, other Great Lakes states and Canadian provinces to coordinate efforts to make the Great Lakes basin more resilient to those changes.